1983 Toyota Celica GT-S - Message Forum (Re: Sudden drop in RPM)

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Re: Sudden drop in RPM

Posted By: Steven Benner

Posted On: July 15, 2002 at 2:16 pm EDT

Is the AC on? This could be many things, including the ignition. Could also be the EGR. IIRC you car is EFI, correct? Could be one of the sensors malfunctioning. Have you had any abnormal lights on your intruments? Do a tune up (replace the spark plugs, wires, rotor, cap, fuel filter, and check the valve lash and timming). Now may be a good time to have your fuel injectors services too. If the problem still continues after the tune up (especialy fuel filter) then let me know. As allways I would suggest you ask the OCC too.

Hope this helps,
Steve

Vic Soto wrote:

> I been running my celica almos
> t every day and a problem seem
>  to comes and goes. Sometimes
> when I just slow down to down
> shift or plain stop a sudden d
> rop of RPM occur more than nor
> mal . The Rpm will go almost t
> o 300 and up again in a sequen
> ce of two. I suspect a problem
>  with the coil or ignition sys
> tem . Any insight will be appr
> eciated.
> And an update in the Power loc
> k problem , is fix . The probl
> em was the  lock control relay
> , it was located under the ste
> ering wheel all the way to the
>  firewall. It seems that the c
> ontacts became corroded, a goo
> d cleaning and re-adjustment o
> f the contact springs did the
> trick. I suggest to try that f
> irst since the price for a new
>  replacemment is around 125.00
> .

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Message:	Steven Benner wrote: > Is the AC on? This could be ma > ny things, including the ignit > ion. Could also be the EGR. II > RC you car is EFI, correct? Co > uld be one of the sensors malf > unctioning. Have you had any a > bnormal lights on your intrume > nts? Do a tune up (replace the > spark plugs, wires, rotor, ca > p, fuel filter, and check the > valve lash and timming). Now m > ay be a good time to have your > fuel injectors services too. > If the problem still continues > after the tune up (especialy > fuel filter) then let me know. > As allways I would suggest yo > u ask the OCC too. > > Hope this helps, > Steve > > Vic Soto wrote: > > > I been running my celica alm > os > > t every day and a problem se > em > > to comes and goes. Sometime > s > > when I just slow down to dow > n > > shift or plain stop a sudden > d > > rop of RPM occur more than n > or > > mal . The Rpm will go almost > t > > o 300 and up again in a sequ > en > > ce of two. I suspect a probl > em > > with the coil or ignition s > ys > > tem . Any insight will be ap > pr > > eciated. > > And an update in the Power l > oc > > k problem , is fix . The pro > bl > > em was the lock control rel > ay > > , it was located under the s > te > > ering wheel all the way to t > he > > firewall. It seems that the > c > > ontacts became corroded, a g > oo > > d cleaning and re-adjustment > o > > f the contact springs did th > e > > trick. I suggest to try that > f > > irst since the price for a n > ew > > replacemment is around 125. > 00 > > .
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